The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 1977
Filed:
Mar. 15, 1976
Applicant:
Inventor:
Taichiro Akiyama, Shimoochiai, Shinjuku-ku, Tokyo, JA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128152 ;
Abstract
A plug for a living body includes a first chamber, a second chamber communicating with the first chamber, a holding means for holding the condition that the volume of the first chamber is reduced and a fluid put into the first and second chambers. The fluid is pressed into the second chamber when the volume of the first chamber is reduced so that the volume of the second chamber is increased. The external auditory miatus can be surely plugged with the plug.